| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_9b03fc83c1ee3c8b1655ffa12b2d9012 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B57-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/C09B11-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/B41M5-1455 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/B41M5-145
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B11-24
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/C09B57-00 |
| filingDate |
1971-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1974-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_200d7131319c1796d04863dbdf14164f
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_4f8819747267de3b4618d2c02caedc4f |
| publicationDate |
1974-07-23-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-3825544-A |
| titleOfInvention |
7 piperazinofluorans |
| abstract |
AN EXCELLENT PRESSURE SENSITIVE COPYING SHEET IS PROVIDED BY APPLYING AS A COLOR FORMER CERTAIN ENCAPSULED FLUORAN COMPOUNDS, I.E. FLUORAN COMPOUNDS LINKING IN THE 7-POSITION WITH AT LEAST ONE OF THE TWO NITROGEN ATOMS IN A PIPERAZINE RING AND HAVING A DIALKYLAMINO GROUP IN THE 3-POSITION TO EITHER A SINGLE SHEET OR TO THE UPPER LEAF OF A PRESSURE SENSITIVE PAPER. THE COLOR FORMER IS SOLUBLE IN AROMATIC SOLVENTS AND ALSO HAS EXCELLENT LIGHT FASTNESS. |
| priorityDate |
1970-12-15-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |